/*

<This Java Class is part of the jMusic API version 1.5, March 2004.>

Copyright (C) 2000 Andrew Sorensen & Andrew Brown

This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or any
later version.

This program is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.

*/

package jm.music.net;

import java.io.IOException;
import java.net.ServerSocket;
import java.util.Enumeration;
import java.util.Vector;

/**
 * @author Andrew Sorensen
 * @version 1.0, Sun Feb 25 18:42:51  2001
 */

public class DSServer extends Thread {
    //----------------------------------------------
    // Attributes
    //----------------------------------------------
    /**
     * The listener socket for this server.
     */
    private ServerSocket ss;
    /**
     * A vector holding all current client connections
     */
    private Vector clientConnections;

    //----------------------------------------------
    // Constructors
    //----------------------------------------------

    /**
     * The default JMDistServer is responsible for establishing a
     * ServerSocket and a thread responsible for listening for
     * ServerSocket accepts.
     * A default listener port number of 6767 is chosen for client
     * connections.
     */
    public DSServer() {
        this(6767);
    }

    /**
     * The default JMDistServer is responsible for establishing a
     * ServerSocket and a thread responsible for listening for
     * ServerSocket accepts.
     *
     * @param port the port number for this server to listen on.
     */
    public DSServer(int port) {
        clientConnections = new Vector();
        try {
            this.ss = new ServerSocket(port);
        } catch (IOException ioe) {
        }
        this.start();
    }

    //----------------------------------------------
    // Public Methods
    //----------------------------------------------

    /**
     * This threads run method
     */
    public void run() {
        for (; ; ) {
            try {
                DSServerConnector dsc = new DSServerConnector(this.ss.accept(), this);
                clientConnections.addElement(dsc);
            } catch (IOException ioe) {
                //Stuff
            }
        }
    }

    /**
     * Broadcast updates to all attached clients
     */
    public void broadCast(Object obj, DSServerConnector conin) {
        Enumeration enum1 = clientConnections.elements();
        while (enum1.hasMoreElements()) {
            DSServerConnector con =
                    (DSServerConnector) enum1.nextElement();
            if (con != conin) con.sendObject(obj);
        }
    }

    /**
     * Delete this connection from the list of options
     */
    public void deleteConnection(DSServerConnector con) {
        this.clientConnections.removeElement(con);
        con = null;
    }
}
